curl --request GET \
  --url https://{tenant}.stamp.eu/rest/roles \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "display_name": "<string>",
      "is_system": true,
      "permissions": [
        "<string>"
      ]
    }
  ]
}